title: Within-session rates of responding when reinforcer magnitude is changed within the session.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000502:physiology; D003216:Conditioning, Operant; D005247:Feeding Behavior; D008297:Male; D051381:Rats; D017207:Rats, Sprague-Dawley; D012054:Reinforcement, Psychology